CN209908442U - Oil reservoir deep fixed point positioning and azimuth pressure maintaining coring tool - Google Patents
Oil reservoir deep fixed point positioning and azimuth pressure maintaining coring tool Download PDFInfo
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- CN209908442U CN209908442U CN201920091328.7U CN201920091328U CN209908442U CN 209908442 U CN209908442 U CN 209908442U CN 201920091328 U CN201920091328 U CN 201920091328U CN 209908442 U CN209908442 U CN 209908442U
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Abstract
The utility model discloses an oil reservoir deep part fixed point position pressurize coring tool, including flexible urceolus (4) of coring, flexible urceolus (4) endotheca is equipped with pressure temperature measurement nipple joint (6) and flexible pressurize inner tube (5), the one end of flexible urceolus (4) of coring is connected with coring bit (1), the one end of flexible pressurize inner tube (5) loops through rock core claw (3) and airtight head (2) and is connected with coring bit (1), the other end and the pressure temperature measurement nipple joint (6) of flexible pressurize inner tube (5) are connected, pressure and temperature in flexible pressurize inner tube (5) can be measured in pressure temperature measurement nipple joint (6). This oil reservoir deep fixed point location pressurize coring tool first can realize the airtight coring of oil reservoir deep pressurize through the super short radius sidetracking horizontal well of old well, and the second can realize that the oil reservoir deep is from 2m to 60m within ranges apart from the well week, and fixed point location coring, the third can realize coring while along with the drill detection reservoir pressure, temperature.
Description
Technical Field
The utility model relates to an oil drilling equipment field, specific is an oil reservoir deep fixed point location pressurize coring tool.
Background
Currently, the coring tools are classified into conventional coring tools (execution standard: SY/T5216-. Conventional coring tools are divided into: self-locking, pressurized and sand clamped. The special coring tool comprises: and (4) coring tools such as sealing, orientation, pressure maintaining (sealing), sponge coring, horizontal well coring and the like. And (2) pressure-maintaining closed coring, which is used in the later development stage of the sandstone oil field, is used for accurately obtaining the data of reservoir physical properties such as the porosity, permeability, saturation and the like under the current bottom hole condition, and is used for drilling a core for maintaining the completeness of reservoir fluid under the condition of water-based drilling fluid by adopting a pressure-maintaining closed coring tool and a sealing fluid in order to formulate a reasonable development adjustment scheme and improve the final recovery ratio of the oil field. I.e. drilling a core that is not contaminated by drilling fluid free water and maintains the reservoir pressure at the prevailing downhole conditions. The coring tool and process are relatively complex and high in cost, and are suitable for soft, medium and hard strata with lithogenesis. The existing pressure-maintaining closed coring tool completes coring by newly drilling a coring well, the drilling cost is high, in addition, the cost of the coring process is high, the comprehensive coring cost is too high, and an oil field cannot bear the coring cost.
SUMMERY OF THE UTILITY MODEL
In order to reduce the cost of coring, the utility model provides an oil reservoir deep fixed point location pressurize coring tool, this oil reservoir deep fixed point location pressurize coring tool first can realize the airtight coring of old oil field development later stage oil reservoir deep pressurize low cost, and the second can realize the oil reservoir deep from well week 2m to apart from the well 60m within range, fixed point location coring, and the third can realize coring while following the drill detection oil reservoir pressure, temperature.
The utility model provides a technique utility model that its technical problem adopted is:
the utility model provides an oil reservoir deep fixed point position pressurize coring tool, including flexible urceolus of coring, flexible urceolus endotheca of coring is equipped with pressure temperature measurement nipple joint and flexible pressurize inner tube, the one end of flexible urceolus of coring is connected with the coring bit, the one end of flexible pressurize inner tube loops through rock core claw and airtight head and is connected with the coring bit, the other end and the pressure temperature measurement nipple joint of flexible pressurize inner tube are connected, pressure and temperature in the flexible pressurize inner tube can be measured to the pressure temperature measurement nipple joint.
And a storage type multi-point inclination measuring short section is further sleeved in the flexible coring outer barrel, and the pressure and temperature measuring short section is positioned between the storage type multi-point inclination measuring short section and the flexible pressure maintaining inner barrel.
And a pressure compensation system is also sleeved in the flexible coring outer barrel and is connected with the storage type multi-point inclination measuring short joint through a flexible high-pressure pipe.
And a hanging short section is further sleeved in the flexible coring outer barrel, one end of the pressure compensation system is connected with the hanging short section, and the other end of the pressure compensation system is connected with the flexible high-pressure pipe.
The flexible coring outer barrel comprises a drill rod upper joint, a flexible drill rod and a drill rod lower joint which are sequentially connected, a hanging short section is fixed in the drill rod upper joint, and a coring bit is connected with the drill rod lower joint.
The flexible pressure maintaining inner cylinder is used for loading a drilled core and is a titanium alloy cylinder.
The length of the flexible pressure maintaining inner cylinder is 1000mm, the inner diameter of the flexible pressure maintaining inner cylinder is 38mm, and the flexible pressure maintaining inner cylinderHas a volume of 1133540mm3。
The utility model has the advantages that:
1. the method integrates and innovating technologies such as a flexible drill rod, a flexible coring outer barrel, a flexible pressure maintaining coring inner barrel, core detection while drilling, storage type multi-point inclination measurement and the like, develops a fixed-point orientation deep pressure maintaining coring technology, realizes formation temperature and pressure detection while drilling by side drilling, and fixed-point orientation pressure maintaining coring at the deep part of an oil layer.
2. The utility model discloses fixed point location position deep pressurize coring tool is connected with flexible coring urceolus through flexible drilling rod, and accessible curvature radius 2-3 m's ultrashort radius sidetracking well realizes that the oil reservoir deep is from 2m in the well week to coring 60m within ranges apart from the well.
3. The utility model discloses fixed point location deep pressurize coring tool, pressure compensating system, hang the nipple joint and arrange the straight well section in the windowing upper end in, through the flexible pressurize inner tube connection of flexible high-voltage tube with the lower part.
4. The utility model discloses fixed point location deep pressurize coring tool, flexible coring inner tube design have pressure, temperature to detect the structure. The pressure and the temperature of the position of the core can be detected while drilling and stored.
5. The utility model discloses fixed point position deep pressurize coring tool has the storage formula multiple spot deviational survey device of design, can detect coring point position and well skew, helps meticulous description rock core position, and then meticulous description oil reservoir rerum natura.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is the working condition schematic diagram of the oil layer deep fixed-point orientation pressure-maintaining coring tool of the utility model.
1. A coring bit; 2. closing the head; 3. a core claw; 4. a flexible coring outer barrel; 5. a flexible pressure maintaining inner cylinder; 6. a pressure and temperature measuring nipple; 7. a storage type multipoint inclination measuring short section; 8. a flexible high pressure tube; 9. a pressure compensation system; 10. hanging the short section; 11. the earth formation.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The utility model provides a deep fixed point position pressurize coring tool in oil reservoir, including flexible urceolus 4 of coring, 4 endotheca of flexible urceolus of coring are equipped with pressure temperature measurement nipple joint 6 and flexible pressurize inner tube 5, the one end of flexible urceolus 4 of coring is connected with coring bit 1, the one end of flexible pressurize inner tube 5 loops through rock core claw 3 and sealed head 2 and is connected with coring bit 1, the other end and the pressure temperature measurement nipple joint 6 of flexible pressurize inner tube 5 are connected, pressure and temperature in flexible pressurize inner tube 5 can be measured to pressure temperature measurement nipple joint 6, as shown in figure 1.
In this embodiment, still the cover is equipped with storage formula multiple spot deviational survey nipple joint 7 in the flexible urceolus 4 of coring, and pressure temperature measurement nipple joint 6 is located between storage formula multiple spot deviational survey nipple joint 7 and the flexible pressurize inner tube 5. A pressure compensation system 9 is further sleeved in the flexible coring outer barrel 4, and the pressure compensation system 9 is connected with the storage type multipoint inclination measuring pup joint 7 through a flexible high-pressure pipe 8.
The storage type multi-point inclination measuring nipple 7 is used for detecting parameters such as a well inclination angle, a magnetic orientation, a true orientation and the like of a coring position while drilling, and the pressure compensation system 9 is used for keeping the pressure in the flexible pressure maintaining inner cylinder 5 at a required value (stratum original pressure). And the flexible high-pressure pipe 8 penetrates through the pressure and temperature measuring nipple 6 and the storage type multi-point inclinometer nipple 7. A plurality of sensors (such as pressure sensors, temperature sensors and the like) are arranged in the flexible pressure maintaining inner cylinder 5, the sensors are connected with a control unit or a storage unit in the pressure and temperature measuring nipple 6, and the sensors are used for guiding the pressure compensation system 9 to perform pressure compensation on the flexible pressure maintaining inner cylinder 5. In addition, the flexible pressure maintaining inner cylinder 5 also has a pressure maintaining function.
In this embodiment, still the cover is equipped with and hangs nipple joint 10 in the outer tube 4 of coring of flexibility, and pressure compensation system 9's one end is connected with hanging nipple joint 10, and pressure compensation system 9's the other end is connected with flexible high-pressure pipe 8. Two ends of the flexible high-pressure pipe 8 are respectively connected with the pressure compensation system 9 and the flexible pressure maintaining inner cylinder 5.
In this embodiment, the flexible coring outer cylinder 4 contains a drill rod upper joint, a flexible drill rod and a drill rod lower joint which are connected in sequence, the hanging short section 10 is fixed in the drill rod upper joint, and the coring bit 1 is connected with the drill rod lower joint. The flexible pressure maintaining inner cylinder 5 is used for loading a drilled core, and the flexible pressure maintaining inner cylinder 5 is a titanium alloy cylinder. The length of the flexible pressure maintaining inner cylinder 5 is 1000mm, the inner diameter of the flexible pressure maintaining inner cylinder 5 is 38mm, and the volume of the flexible pressure maintaining inner cylinder 5 is 1133540mm3。
The flexible coring outer cylinder 4 can be bent and rotated, so that the coring bit 1 is driven to rotate and drill in the stratum 11, the core is collected, and the collected core enters the flexible pressure maintaining inner cylinder 5 to be stored. Due to the effect of the hanging short section 10, when the flexible coring outer barrel 4 rotates, the pressure compensation system 9, the flexible high-pressure pipe 8, the storage type multipoint inclination measuring short section 7, the pressure temperature measuring short section 6 and the flexible pressure maintaining inner barrel 5 cannot rotate along with the flexible coring outer barrel 4.
The utility model discloses with the airtight coring tool of pressurize flexibility, miniaturization, intellectuality, through electromechanical liquid integration design, realize the airtight coring of the ultrashort radius sidetracking horizontal well pressurize in the oil reservoir inside, accurate positioning coring position, well incline, measurement coring point temperature, pressure isoparametric.
The utility model discloses fixed point location position deep pressurize coring tool is based on ultra-short radius sidetracking, the airtight coring of pressurize, temperature pressure monitoring in the pit, technical integration innovation such as storage formula multiple spot deviational survey forms. The core-pulling device is not an independent tool, and is a special core-pulling technology developed for meeting the requirements of pressure-maintaining, sealing and core-pulling in the deep part of an oil layer and accurately describing the physical properties of a reservoir.
In addition, if the utility model has no details, refer to chinese patent CN 108005603 a, publication date 2018, 5, 8, a "flexible closed coring tool" disclosed, and the utility model will not be described in detail for saving space.
The above description is only for the specific embodiments of the present invention, and the scope of the present invention can not be limited by the embodiments, so that the replacement of the equivalent components or the equivalent changes and modifications made according to the protection scope of the present invention should still belong to the scope covered by the present patent. Additionally, the utility model provides an between technical feature and the technical feature, between technical feature and the technical utility model, between technical utility model and the technical utility model all can the independent assortment use.
Claims (7)
1. The utility model provides a deep localization point of oil reservoir direction pressurize coring tool, a serial communication port, deep localization point of oil reservoir direction pressurize coring tool includes flexible urceolus (4) of coring, flexible urceolus (4) endotheca is equipped with pressure temperature measurement nipple joint (6) and flexible pressurize inner tube (5) of coring, the one end of flexible urceolus (4) of coring is connected with coring bit (1), the one end of flexible pressurize inner tube (5) loops through rock core claw (3) and airtight head (2) and is connected with coring bit (1), the other end and the pressure temperature measurement nipple joint (6) of flexible pressurize inner tube (5) are connected, pressure and temperature in flexible pressurize inner tube (5) can be measured in pressure temperature measurement nipple joint (6).
2. The oil reservoir deep fixed-point orientation pressure-maintaining coring tool according to claim 1, wherein a storage type multi-point inclination measuring short section (7) is further sleeved in the flexible coring outer cylinder (4), and the pressure temperature measuring short section (6) is located between the storage type multi-point inclination measuring short section (7) and the flexible pressure-maintaining inner cylinder (5).
3. The tool for carrying out deep fixed-point orientation pressure-maintaining coring on an oil reservoir as claimed in claim 2, wherein a pressure compensation system (9) is further sleeved in the flexible coring outer cylinder (4), and the pressure compensation system (9) is connected with the storage type multipoint inclinometer pup joint (7) through a flexible high-pressure pipe (8).
4. The oil reservoir deep fixed-point orientation pressure-maintaining coring tool according to claim 3, wherein a hanging nipple (10) is further sleeved in the flexible coring outer cylinder (4), one end of the pressure compensation system (9) is connected with the hanging nipple (10), and the other end of the pressure compensation system (9) is connected with the flexible high-pressure pipe (8).
5. The oil reservoir deep fixed-point and orientation pressure-maintaining coring tool according to claim 4, wherein the flexible coring outer cylinder (4) comprises a drill pipe upper joint, a flexible drill pipe and a drill pipe lower joint which are sequentially connected, the hanging short joint (10) is fixed in the drill pipe upper joint, and the coring bit (1) is connected with the drill pipe lower joint.
6. The tool for performing point-locating, azimuth-keeping and pressure-maintaining coring at the deep part of an oil reservoir according to claim 1, wherein the flexible pressure-maintaining inner cylinder (5) is used for containing a core to be drilled, and the flexible pressure-maintaining inner cylinder (5) is a titanium alloy cylinder.
7. The tool for performing point-locating, azimuth-locating, pressure-maintaining and coring at the deep part of an oil reservoir according to claim 1, wherein the length of the flexible pressure-maintaining inner cylinder (5) is 1000mm, the inner diameter of the flexible pressure-maintaining inner cylinder (5) is 38mm, and the volume of the flexible pressure-maintaining inner cylinder (5) is 1133540mm3。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920091328.7U CN209908442U (en) | 2019-01-21 | 2019-01-21 | Oil reservoir deep fixed point positioning and azimuth pressure maintaining coring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920091328.7U CN209908442U (en) | 2019-01-21 | 2019-01-21 | Oil reservoir deep fixed point positioning and azimuth pressure maintaining coring tool |
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| CN209908442U true CN209908442U (en) | 2020-01-07 |
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| CN201920091328.7U Active CN209908442U (en) | 2019-01-21 | 2019-01-21 | Oil reservoir deep fixed point positioning and azimuth pressure maintaining coring tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123748A (en) * | 2021-01-04 | 2021-07-16 | 成都理工大学 | Intelligent core tube pressure adjusting system and method for stress-preserving coring |
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2019
- 2019-01-21 CN CN201920091328.7U patent/CN209908442U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113123748A (en) * | 2021-01-04 | 2021-07-16 | 成都理工大学 | Intelligent core tube pressure adjusting system and method for stress-preserving coring |
| CN113123748B (en) * | 2021-01-04 | 2022-06-03 | 成都理工大学 | Intelligent core tube pressure adjusting system and method for stress-preserving coring |
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