NON-RADIOACTIVE TAGGED CEMENT ADDITIVE FOR CEMENT EVALUATION IN A WELL SYSTEM
    2.
    发明申请
    NON-RADIOACTIVE TAGGED CEMENT ADDITIVE FOR CEMENT EVALUATION IN A WELL SYSTEM 审中-公开
    用于水泥系统中水泥评估的非放射性标签水泥添加剂

    公开(公告)号:US20140034823A1

    公开(公告)日:2014-02-06

    申请号:US13943886

    申请日:2013-07-17

    Abstract: An inert (non-radioactive) tagging material can be added to cement in a wellbore. The non-radioactive tagging material can emit radiation at a specific energy level when irradiated with radiation. A logging tool containing a radiation source can be introduced into a wellbore and activated to emit radiation. The logging tool can detect the radiation emitted from the non-radioactive tags within the wellbore. Accordingly, integrity of cement, particularly low density cements that have a density close to that of fluid provided to or contained within a hydrocarbon-bearing formation, can be determined from the detected radiation.

    Abstract translation: 惰性(非放射性)标签材料可以添加到井眼中的水泥中。 当放射线照射时,非放射性标签材料可以以特定能级发射辐射。 可以将包含辐射源的测井工具引入井眼并激活以发射辐射。 测井工具可以检测从井筒内的非放射性标签发出的辐射。 因此,可以从检测到的辐射确定具有接近于提供给或包含在含烃地层内的流体的密度的密度的水泥,特别是低密度水泥的完整性。

    Systems and Methods for Placing Markers in a Formation
    3.
    发明申请
    Systems and Methods for Placing Markers in a Formation 审中-公开
    形成标记的系统和方法

    公开(公告)号:US20120318501A1

    公开(公告)日:2012-12-20

    申请号:US13494681

    申请日:2012-06-12

    CPC classification number: E21B41/00 E21B47/044

    Abstract: A marker placement device, such as a modified coring gun, is used to place one or more markers into the formation. The marker placement device uses explosive charges to fire one or more marker assemblies into a borehole wall. A marker assembly includes a driver assembly which is adapted to be fired from the placement device and a marker which is releasably secured to the driver with frangible shear members.

    Abstract translation: 使用诸如修改的取心枪的标记放置装置将一个或多个标记物放置在地层中。 标记放置装置使用爆炸装置将一个或多个标记组件发射到钻孔壁中。 标记组件包括适于从放置装置被烧制的驱动器组件和可拆卸地以易碎剪切构件固定到驾驶员的标记。

    Use of cesium as a tracer in coring operations
    5.
    发明申请
    Use of cesium as a tracer in coring operations 失效
    在取芯操作中使用铯作为示踪剂

    公开(公告)号:US20050005694A1

    公开(公告)日:2005-01-13

    申请号:US10614850

    申请日:2003-07-08

    CPC classification number: E21B47/044 E21B25/00

    Abstract: A method for measuring the infiltration of coring fluid into a core sample taken from a formation comprises a) providing a coring fluid containing cesium in a first concentration, b) using the coring fluid and a coring means to generate the core sample, c) determining the concentration of cesium present in the core sample; and d) comparing the core sample cesium concentration to the first concentration. A further preferred step comprises using the comparison in step d) to calculate the degree of infiltration of the coring fluid into the core sample.

    Abstract translation: 一种用于测量取芯流体从岩层中取出的核心样品的渗透方法包括:a)以第一浓度提供含有铯的取芯流体,b)使用取芯流体和取芯装置产生岩芯样品; c)确定 核心样品中存在的铯浓度; 和d)将核心样品铯浓度与第一浓度进行比较。 进一步优选的步骤包括使用步骤d)中的比较来计算取芯流体进入核心样品的渗透程度。

    Treatment of radioactive material
    6.
    发明授权
    Treatment of radioactive material 失效
    放射性物质的处理

    公开(公告)号:US5678239A

    公开(公告)日:1997-10-14

    申请号:US640690

    申请日:1996-05-01

    CPC classification number: E21B47/044 C09K8/16 G21F9/28

    Abstract: A process for treating naturally occurring radioactive material (NORM) comprises use of NORM as a mud constituent in a drilling mud manufacturing process and particle size reduction of the NORM particles during or before that process to attain a selected particle size corresponding to that of a particulate drilling mud component, said particle size reduction being optionally accompanied by additional mixing, if necessary, of the NORM and mud component particles, the aim of said use being the achievement of irreversible dilution of the NORM particles in said component to nullify the radioactive nature thereof.

    Abstract translation: 用于处理天然存在的放射性材料(NORM)的方法包括在钻井泥浆制造过程中使用NORM作为泥浆成分,并在该过程期间或之前使NORM颗粒的粒径减小,以获得与颗粒的相应的选定粒径 钻井泥浆组分,所述颗粒尺寸的减小可选地伴随有必要的NORM和泥浆组分颗粒的额外混合,所述用途的目的是实现所述组分中NORM颗粒的不可逆稀释以消除其放射性质 。

    Natural gamma ray logging sub
    7.
    发明授权
    Natural gamma ray logging sub 失效
    自然伽马射线测井

    公开(公告)号:US5285065A

    公开(公告)日:1994-02-08

    申请号:US930333

    申请日:1992-08-17

    CPC classification number: E21B47/044 E21B47/01 G01V15/00

    Abstract: A natural gamma tag marking materials for sub or permanent markers used in gamma logging operations, such natural gamma materials having a gamma count of between 200 and 1000 counts per second. The instant invention further discloses a typical Sub, for insertion in a drilling operation, utilizing natural gamma element compounds which are considered to be non-hazardous and effective as tag markers when used in wireline logging operations.

    Abstract translation: 用于伽马测井操作的用于次级或永久性标记的天然伽马标签标记材料,这种天然伽马材料的伽马计数为每秒200至1000个计数。 本发明进一步公开了一种典型的Sub,用于在钻井操作中插入,当用于电缆测井操作时,利用被认为是非危险和有效的标记标记的天然γ元素化合物。

    Casing centralizer
    8.
    发明授权
    Casing centralizer 失效
    套管扶正器

    公开(公告)号:US5095981A

    公开(公告)日:1992-03-17

    申请号:US610772

    申请日:1990-11-08

    CPC classification number: E21B17/1078 E21B47/01 E21B47/044

    Abstract: There is disclosed a casing centralizer which comprises a tubular body or sleeve adapted to fit about a joint of casing, and blades extending longitudinally along the outer diameter of the sleeve in generally equally spaced apart relation, with the body and blades being cast as one metal piece.

    Abstract translation: 公开了一种套管对中器,其包括适于围绕套管接头的管状体或套管,以及沿着套管的外径纵向延伸的刀片,其大致间隔开的关系,主体和刀片被铸造为一种金属 片。

    Device for placing a radioactive source in a formation through which a
borehole passes
    9.
    发明授权
    Device for placing a radioactive source in a formation through which a borehole passes 失效
    用于将放射源放置在井眼通过的地层中的装置

    公开(公告)号:US4916312A

    公开(公告)日:1990-04-10

    申请号:US164254

    申请日:1988-03-04

    CPC classification number: E21B47/044 E21B43/116

    Abstract: The present invention relates to a device for placing a radioactive source into a formation through which a borehole passes. The device includes a gun barrel, a bullet containing a radioactive source and engaged in the barrel, and an explosive device for propelling the bullet towards the formation. The device further includes two items which reduce the speed at which the bullet, when fired, penetrates into the formation. These items are a spacer, placed in the barrel between the bullet and the explosive device, and a braking shield placed at the port end of the barrel. The spacer reduces the effect of the gases produced by the explosive device upon detonation. The braking shield is entrained with the fired bullet, the front end of the shield producing drag which also acts to retard the forward propulsion of the bullet. The shield is designed to break away from the bullet upon formation impact, further reducing the kinetic energy of the bullet. The invention is applicable to soft formations.

Patent Agency Ranking