公开(公告)号：US4911002A

公开(公告)日：1990-03-27

申请号：US334054

申请日：1989-04-06

Applicant: Milton B. Enderlin ,  Keith Vickers ,  Thomas Knode

Inventor： Milton B. Enderlin ,  Keith Vickers ,  Thomas Knode

IPC: G01N3/00 ,  G01N3/40 ,  G01N33/24

CPC classification number: G01N33/24 ,  G01N3/40 ,  G01N2203/0053 ,  G01N2203/0076 ,  G01N2291/02827

Abstract: Measuring apparatus for use with a motor driven rotary saw blade is disclosed so that dynamic measurements can be obtained while cutting lengthwise a core sample from a well borehole. The core sample is held, and the motor driven rotary driven saw blade is used to cut along the length of the core sample. Selected transducers are installed, and all the transducers connect to a CPU which also has connections with a clock, memory and recorder. Data is recorded either as a function of time or as a function of the location of the cutting tool along the core sample. Transducers include a current monitor for current operating the motor, a microphone measuring sound levels generated by the saw blade cutting through the core sample, a tension measuring device which provides the force which causes the motor to traverse along the length of the core sample, and also X, Y, Z coordinate vibration sensors such as accelerometers. Another measuring device responds to the force applied to the motor causing it to move, and the relative position of the saw blade relative to the disk is also measured.

Abstract translation: 公开了一种用于马达驱动的旋转锯片的测量装置，从而可以在从井眼中纵向切割芯样品时获得动态测量。 保持芯体样品，电机驱动的旋转驱动锯片用于沿核心样品的长度切割。 安装了所选传感器，所有的传感器都连接到一个CPU，它也与时钟，存储器和记录器连接。 数据记录为时间的函数，或作为切割工具沿核心样本的位置的函数记录。 传感器包括用于当前操作电动机的电流监视器，测量锯片通过芯样品切割产生的声级的麦克风，提供使电动机沿芯样本的长度穿过的力的张力测量装置，以及 还有X，Y，Z坐标振动传感器，如加速度计。 另一个测量装置响应于施加到电动机上的力使其移动，并且也测量锯片相对于盘的相对位置。

公开(公告)号：US5236040A

公开(公告)日：1993-08-17

申请号：US897325

申请日：1992-06-11

Applicant: James J. Venditto ,  David E. McMechan ,  Milton B. Enderlin

Inventor： James J. Venditto ,  David E. McMechan ,  Milton B. Enderlin

IPC: E21B43/26 ,  E21B47/02 ,  E21B49/00

CPC classification number: E21B47/02 ,  E21B43/26 ,  E21B49/006 ,  E21B49/008

Abstract: An improved method for determining the magnitude of the minimum principle horizontal stress within a formation is disclosed and claimed herein. In particular, the inventive method involves the use of a wireline retrievable circumferential acoustic scanning tool during an open hole microfracture test to determine the magnitude of the minimum principle horizontal stress in the formation.

Abstract translation: 本文公开并要求了一种用于确定地层内的最小原理水平应力的大小的改进方法。 特别地，本发明的方法涉及在开孔微裂缝测试期间使用电缆可回收的圆周声波扫描工具来确定地层中最小原理水平应力的大小。

公开(公告)号：US5253719A

公开(公告)日：1993-10-19

申请号：US898994

申请日：1992-06-15

Applicant: Matthew E. Blauch ,  Milton B. Enderlin

Inventor： Matthew E. Blauch ,  Milton B. Enderlin

IPC: E21B49/00 ,  E21B49/02 ,  G01N33/24 ,  E21B25/00 ,  E21B49/06

CPC classification number: E21B49/02 ,  E21B49/005 ,  G01N33/241

Abstract: This invention provides a method for diagnosing formation damage mechanisms through the use of radially oriented core samples cut from the wellbore wall. Core samples are taken from the wellbore and analyzed under a number of different analytical methods. From the analysis of the cores the operator should be able to determine the type, extent, and severity of the formation damage, as well as the distance that damage extends out into the formation.

Abstract translation: 本发明提供了一种用于通过使用从井眼壁切割的径向取向的岩心样品来诊断地层损伤机理的方法。 核心样品取自井筒，并在多种不同的分析方法下进行分析。 从核心的分析，操作员应该能够确定地层损伤的类型，程度和严重程度，以及损坏延伸到地层中的距离。

公开(公告)号：US5105894A

公开(公告)日：1992-04-21

申请号：US647941

申请日：1991-01-30

Applicant: Milton B. Enderlin

Inventor： Milton B. Enderlin

IPC: E21B25/16 ,  E21B47/026 ,  E21B49/06

CPC classification number: E21B47/026 ,  E21B25/16 ,  E21B49/06

Abstract: A method and apparatus for determining the location in space of a formation sample is set forth. This involves a tool which is typically run on a wireline in a well, the tool supporting orthogonal positioned magnetometers and similar orthogonal accelerometers for measuring movement of the tool along the well borehole whereby components of the magnetic field and gravity field are measured to enable determination of the well in space. The tool supports an axially positioned centrally located core cutting apparatus and a laterally projecting plug cutting apparatus; scribe marks formed on the formation samples orient the samples relative to the tool and the tool is located in space from the above mentioned measurements so that the position of formation samples can be determined.

Abstract translation: 阐述了确定地层样本空间位置的方法和装置。 这涉及通常在井中的电缆上运行的工具，支撑正交定位的磁力计的工具和类似的正交加速度计，用于测量沿着井眼的工具的运动，从而测量磁场和重力场的分量，以确定 在空间的井。 该工具支撑轴向定位的中心位置的芯切割装置和横向突出的插头切割装置; 形成在地层样品上的划线将样品相对于工具取向，并且工具位于距离上述测量值的空间中，使得可以确定地层样品的位置。

公开(公告)号：US4950844A

公开(公告)日：1990-08-21

申请号：US333676

申请日：1989-04-06

Applicant: Bobby J. Hallmark ,  Milton B. Enderlin

Inventor： Bobby J. Hallmark ,  Milton B. Enderlin

IPC: E21B25/08 ,  E21B49/06

CPC classification number: E21B49/06 ,  E21B25/08

Abstract: For use with a core sample tool removing a sample from a formation of interest, a sonde supported sample receiving chamber is disclosed. It includes a main valve for sample insertion into a cavity in a resilient sleeve. The sleeve is in a chamber connected by suitable valved passages to enable ambient pressure at the cavity to equal downhole pressure; by valve operation this pressure can be maintained after chamber removal and transfer.

Abstract translation: 为了与用于从感兴趣的形式去除样品的芯样品工具一起使用，公开了一种支持探头的样品接收室。 它包括用于样品插入到弹性套筒中的空腔中的主阀。 套筒位于通过合适的阀门通道连接的腔室中，以使空腔处的环境压力等于井下压力; 通过阀门操作，可以在室拆卸和转移后保持该压力。

公开(公告)号：US07387015B2

公开(公告)日：2008-06-17

申请号：US11230716

申请日：2005-09-20

Applicant: David M. Chancellor ,  Gangerico G. Ramos ,  Milton B. Enderlin

Inventor： David M. Chancellor ,  Gangerico G. Ramos ,  Milton B. Enderlin

IPC: G01N3/00

CPC classification number: G01N3/50 ,  G01N3/46

Abstract: Apparatus and methods for estimating a physical property of a specimen, particularly the specimen strength, are provided. More specifically, a roller indenter comprising an indenting wheel and a force indicator is used to create an elongated trough in a specimen. The width of the trough is measured as a plurality of locations and correlated with a known standard to provide an estimate of the strength of the sample.

Abstract translation: 提供了用于估计样品的物理性能，特别是试样强度的装置和方法。 更具体地，使用包括压痕轮和力指示器的辊压头来在样本中形成细长的槽。 槽的宽度被测量为多个位置并与已知标准相关联以提供样品强度的估计。

公开(公告)号：US5265462A

公开(公告)日：1993-11-30

申请号：US882195

申请日：1992-05-13

Applicant: Matthew E. Blauch ,  Milton B. Enderlin ,  Hazim H. Abass ,  David E. McMechan

Inventor： Matthew E. Blauch ,  Milton B. Enderlin ,  Hazim H. Abass ,  David E. McMechan

IPC: G01N15/08

CPC classification number: G01N15/08

Abstract: The permeability and/or porosity of gas-containing substrates, particularly substrates of low permeability, can be determined by sealing a gas-containing substrate in a sealable "core analysis vessel" of known or ascertainable volume as soon as possible after removing the sample from the subsurface. Because the sealed sample is still at about formation pressure, gas will leak from the sample into the space of the vessel. The pressure build-up over time in the core analysis vessel is measured. When the pressure has equilibrated, the pressure is vented through a flowmeter to determine gas volume, followed by venting to atmosphere. The system is resealed and then the process is repeated until no subsequent pressure build-up occurs. By knowing the internal volume of the chamber, the bulk volume of the core sample, and recording the pressure build-up as a function of the time, many substrate properties, such as pore volume and permeability, can be calculated via standard methods. The effective pore volume which the gas originally occupied can be directly measured by venting the gas in the core analysis vessel to the external pressure through a flow-volume measuring device.

Abstract translation: 含气体基材，特别是低渗透性基材的渗透性和/或孔隙率可以通过将已含有或可确定的体积的可密封的“芯分析容器”中的含气体基质在将样品从 地下。 因为密封的样品仍然处于约地层压力，所以气体将从样品泄漏到容器的空间中。 测量核心分析容器中随时间的压力积分。 当压力平衡时，通过流量计排出压力以确定气体体积，然后排放到大气中。 系统被重新密封，然后重复该过程，直到不产生随后的压力发生。 通过知道室的内部体积，核心样品的体积体积和记录压力积聚作为时间的函数，可以通过标准方法计算许多底物性质，例如孔体积和渗透性。 原始占据的气体的有效孔体积可以通过通过流量测量装置将核心分析容器中的气体排气到外部压力来直接测量。

公开(公告)号：US5207104A

公开(公告)日：1993-05-04

申请号：US700972

申请日：1991-08-06

Applicant: Milton B. Enderlin

Inventor： Milton B. Enderlin

IPC: E21B49/00 ,  E21B49/10 ,  G01N33/24

CPC classification number: E21B49/006 ,  E21B49/10 ,  G01N33/24

Abstract: A formation test tool is set forth in the present disclosure and has a snorkel on one side and upper and lower diametrically opposite back-up pistons on the opposite side. The back-up pistons are constructed with a back-up plate on the end of the back-up piston encircling and centered around a formation punch. The formation punch has a small diameter and specified length so that, during operation, the punch contacts the sidewall of the well borehole, and pressure is increased thereafter to force the punch into the formation until fracture failure occurs evidenced by a change in hydraulic pressure and a lurching movement of the back-up piston as the punch penetrates the formation. By knowing the diameter of the punch and by observing the hydraulic pressure necessary to obtain failure of the formation at the point of contact with the punch, data can be obtained which is indicative of the compressive strength of the formation.

Abstract translation: 地层测试工具在本公开内容中阐述，并且在一侧具有一个通气管，在相对侧具有上部和下部径向相对的备用活塞。 备用活塞在备用活塞的端部周围形成有一个支撑板，围绕地层冲击器居中。 形成冲头具有小直径和特定长度，使得在操作期间，冲头接触井眼的侧壁，然后压力增加以迫使冲头进入地层，直到断裂故障发生，由液压变化和 当冲头穿过地层时，备用活塞的缓冲运动。 通过知道冲头的直径并且通过观察在与冲头接触的点处获得成形失效所需的液压压力，可以获得指示地层抗压强度的数据。