公开(公告)号：WO1994029627A1

公开(公告)日：1994-12-22

申请号：PCT/US1994006736

申请日：1994-06-13

Applicant: HYDRIL COMPANY

Inventor： HYDRIL COMPANY ,  MOTT, Keith, C.

IPC: F16L15/06

CPC classification number: F16L15/06 ,  E21B17/042

Abstract: A tubular connection (10, 12) is shown having wedge threads (24, 26), the individual threads preferably interlocking by having wider crest dimensions than respective root dimensions, but with the stab flanks (30) and load flanks (32) generally angling in the same direction with respect to the longitudinal axis of the connection. Thus, when the stab flank is positive, it is less positive than the load flank is negative. Conversely, when the stab flank is negative, it is more negative than the load flank is positive. Preferably, the roots and crests radially interfere prior to full makeup. The connection achieves distribution over the entire thread length of the bearing stresses that resist torsional makeup, of the torque load, and of sealing. The slant of the flanks achieves self-centering of the pin member with respect to the box member either during assembly or disassembly depending on the angling in the respective embodiments.

Abstract translation: 示出了具有楔形螺纹（24,26）的管状连接件（10,12），各个螺纹优选地通过具有比相应的根部尺寸更宽的顶部尺寸而互锁，但是具有刀尖侧面（30）和负载侧面（32） 在相对于连接件的纵向轴线的相同方向上。 因此，当胫骨侧面为正时，其负载侧面为负，则为正。 相反，当双方的侧面为负时，其负载侧面为正，则为负。 优选地，根部和顶部在完全化妆之前径向地干扰。 该连接实现了抵抗扭转构造，扭矩负载和密封的轴承应力的整个螺纹长度的分布。 根据各实施例中的角度，侧面的斜面在组装或拆卸期间相对于箱构件实现自定心。

公开(公告)号：WO1986002696A1

公开(公告)日：1986-05-09

申请号：PCT/US1985001842

申请日：1985-09-24

Applicant: HYDRIL COMPANY

Inventor： HYDRIL COMPANY ,  ROCHE, Joseph, R.

IPC: E21B21/00

CPC classification number: E21B21/08 ,  E21B21/001 ,  E21B21/106 ,  E21B33/063 ,  E21B33/064

Abstract: Method and apparatus for maintaining safe pressure in the annulus of a deepwater marine riser by preventing the displacement of drilling mud with formation gas. By providing an improved flow diverting control device (20) having an annular sealing device (88, 90) in the riser string (10) below the riser telescopic joint (21), liquid well fluids under limited pressure can be maintained in the riser (10) despite the impetus of formation gas below the mud column to displace the liquid. Provision of the annular shut-off below the telescopic joint (21) eleminates the necessity to seal well fluid pressure at the telescopic joint packer during kick control circulating operations. The flow diverting control device (20) includes an outlet (86) which opens on the closing of the annular sealing device (88, 90) and which provides a flow path beneath the annular sealing device (88, 90) to a choke line (12) to facilitate bringing the well under control by circulating kill mud. If the BOP stack (4) is on bottom, circulation can be directed down a riser kill line (14) and introduced into the annulus above a closed ram (34, 36, 38). If the BOP's are open or if the stack (4) is not on bottom, circulation is directed down the drill pipe, up the riser annulus and through the choke manifold (56). By maintaining a mud column in the riser annulus, the hazard of collapsing the pipe by external hydrostatic head near the lower end of a deepwater marine riser is avoided.

Abstract translation: 通过防止钻井泥浆与地层气体的位移来维持深水船舶提升管的环空中的安全压力的方法和装置。 通过提供一种改进的分流控制装置（20），其在提升管伸缩接头（21）下方的提升管线（10）中具有环形密封装置（88,90），可以在提升管 10）尽管地层气体在泥浆柱下方推动以移动液体。 在伸缩接头（21）下方提供环形切断装置，在起重控制循环操作期间，必须密封伸缩接头封隔器的良好的流体压力。 分流控制装置（20）包括在环形密封装置（88,90）的关闭时打开的出口（86），并且其在环形密封装置（88,90）下方提供流动通道到扼流管线 12）通过循环杀死泥土来控制井的控制。 如果BOP堆叠（4）在底部，则循环可以被引导到提升管杀线（14）下方并且被引入到封闭的冲压器（34,36,38）上方的环形空间中。 如果BOP是打开的或者如果堆叠（4）不在底部，则循环被引导到钻杆下方，在提升管环上并通过扼流圈（56）。 通过在提升管环中保持泥浆柱，避免了靠近深水海洋提升管下端的外部静水压头塌缩管道的危险。

公开(公告)号：WO1986001252A1

公开(公告)日：1986-02-27

申请号：PCT/US1985001452

申请日：1985-07-30

Applicant: HYDRIL COMPANY

Inventor： HYDRIL COMPANY ,  ORTLOFF, Donald, J. ,  LANDRIAULT, L., Steven

IPC: E21B17/042

CPC classification number: F16L15/004 ,  E21B17/0423 ,  E21B17/0426

Abstract: A pipe joint for use with oil country tubular goods, such as tubing, casing, and drill pipe, a threaded member (28) adapted to be connected to another threaded member (26) to form such a pipe joint, and a method of making the threaded member wherein selected mating threads of the joint and selected threads on the member that are adapted to mate with the threads of another threaded member have less clearance between the load flanks of the selected threads and the mating threads than do the other mating threads of the joint and the other threads of the member, when connected to another threaded member, to cause the selected threads to be stressed initially and to more uniformly stress all of the threads of the joint, when the joint is made-up and when additional external loads are applied.

公开(公告)号：WO1985001999A1

公开(公告)日：1985-05-09

申请号：PCT/US1984001054

申请日：1984-07-06

Applicant: HYDRIL COMPANY

Inventor： HYDRIL COMPANY ,  HYNES, Joseph, H. ,  MORRILL, Charles, D.

IPC: F16K03/26

CPC classification number: E21B34/04

Abstract: A safety valve which may be installed on an offshore wellhead above the tubing head and below the Christmas tree. The valve has a housing (12) with upper and lower vertical passages (32) and a lateral housing passage (16). A cylindrical gate (30) is disposed within the lateral passage (16) and includes a "T" shaped passage therein. The gate (30) may be moved laterally and angularly within the lateral passage (16). During completion or workover of the well, the gate (30) is moved laterally until the upper and lower vertical passages (32) are in full open communication to run drills, hangers or other large diameter devices into the well via a BOP which may be attached to the top of the housing. During normal production, the gate (30) may be laterally moved into the intersection of the vertical (32) and lateral (16) passages and the small through head part of the "T" passage serves to provide a vertical flow path through the production bore which is sealed off from the larger upper and lower vertical passages (32). Flow through side outlets in the housing is possible through the base of the "T" passage. The gate (30) may be angularly moved to have production to the lateral outlets via the head part of the "T" when the base part of the "T" is aligned with production tubing. Should the need arise, the valve may be angularly rotated to a position where the fluid flow path of the production tubing is completely shut in.

公开(公告)号：WO1985001352A1

公开(公告)日：1985-03-28

申请号：PCT/US1984001392

申请日：1984-09-04

Applicant: HYDRIL COMPANY

Inventor： HYDRIL COMPANY ,  HUMBERT, Hugh, L. ,  WOODS, Allan, O. ,  SISKA, Margaret, M.

IPC: G01N27/22

CPC classification number: G01N27/223 ,  G01N33/2823

Abstract: Apparatus for determining the proportion of water in an oil and water mixture flowing in a pipeline (22). An inner probe member (26) is provided within an outer tube (24) connected in series with the pipeline (22). Electrical leads (28, 30) are connected from the inner and the outer tubes (26, 24) to a temperature compensated oscillator circuit (40). At its output terminal (41, 42) the oscillator circuit produces an oscillating signal, the frequency of which is proportional to the capacitance between the inner probe member (26) and the outer tube (24) is representative of the water to oil ratio. A counter circuit (50) is provided, the input terminals of which are connected to the output terminals (41, 42) of the oscillator circuit (40), for generating a digital count signal at its output terminals (41, 42) representative of the frequency of the oscillating signal. A digital computer circuit (60) having a memory stored with a representation of the relationship between counts per unit of time and the water to oil ratio receives the signal from the counter circuit (50) and generates at its output (61, 62) a digital signal representative of the water to oil ratio of the mixture flowing in the pipeline (22). Means (80, 100) for converting the digital output signal to an analog signal for monitoring or displaying and/or recording is provided. Strapping means (70) are also provided for selecting the range of oil to water ratios for which the computer circuit (60) and the monitoring means (80, 100) will respond.

公开(公告)号：WO1984004130A1

公开(公告)日：1984-10-25

申请号：PCT/US1984000507

申请日：1984-04-06

Applicant: HYDRIL COMPANY

Inventor： HYDRIL COMPANY ,  HYNES, Joseph, H. ,  BURTON, James, A.

IPC: E21B33/06

CPC classification number: E21B33/06

Abstract: A packer unit and packer insert (50, 51) adapted for use in an annular blowout preventer. The packer insert includes a generally longitudinal web (31, 33) with its leading edge facing the axial bore of the packing unit sloping from top to bottom in a general radially outward direction.

公开(公告)号：WO1984002373A1

公开(公告)日：1984-06-21

申请号：PCT/US1983001935

申请日：1983-12-12

Applicant: HYDRIL COMPANY

Inventor： HYDRIL COMPANY ,  ROCHE, Joseph, R. ,  CLARK, William, L.

IPC: E21B33/064

CPC classification number: E21B21/001 ,  E21B21/08 ,  E21B21/106 ,  E21B33/064 ,  F16K3/26

Abstract: A seal member (140) of elastomeric material which is shaped to fit sealably within a recess of a flow diverter body. On the inside of the diverter body, a seal is effected against a slidable cylindrical valve sleeve. On the outside of the diverter body, a seal is effected against a permanent housing. The seal is constructed with an outer section having a generally circular opening (141), an inner section having an oblong opening (142) and a connecting section between the outer and inner section having a bore therein connecting the circular opening with the oblong opening. A rigid support member (190) embedded in the elastomeric material provides rigidity and strength to the seal member.

公开(公告)号：WO1984001600A1

公开(公告)日：1984-04-26

申请号：PCT/US1983001581

申请日：1983-10-12

Applicant: HYDRIL COMPANY

Inventor： HYDRIL COMPANY ,  PUNTAR, Joseph ,  PARHAM, B., J.

IPC: E21B23/02

CPC classification number: E21B21/10 ,  E21B23/02 ,  E21B34/08

Abstract: A retrievable inside blowout preventer valve apparatus (A) for use in blocking undesired upwardly flow in the bore of a rotary drill string during well drilling operations. The valve apparatus (A) is installed and retrieved from a subsurface receiver sub (S) connected in the drill string by movement through the bore of the drill string. When shutting off upwardly flow through the bore of the drill string, the valve apparatus (A) automatically operably secures and seals itself in the receiver sub (S). A wireline retrieving tool (T) is used to release the valve apparatus (A) from the receiver sub (S) and to establish a connection therebetween for retrieving the valve apparatus (A) with the wireline (WL).