CN203614050U - Oil-string casing screw thread protecting device at casing head of horizontal well - Google Patents
Oil-string casing screw thread protecting device at casing head of horizontal well Download PDFInfo
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- CN203614050U CN203614050U CN201320663341.8U CN201320663341U CN203614050U CN 203614050 U CN203614050 U CN 203614050U CN 201320663341 U CN201320663341 U CN 201320663341U CN 203614050 U CN203614050 U CN 203614050U
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- protector
- screw thread
- sleeve pipe
- leading
- horizontal well
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Abstract
The utility model relates to an oil-string casing screw thread protecting device at the casing head of a horizontal well. The oil-string casing screw thread protecting device consists of two parts of a casing screw thread protector handling tool and a casing screw thread protector, wherein the casing screw thread protector handling tool comprises a joint and a leading-in body; the lower part of the leading-in body is a cone-shaped body and the upper part of the leading-in body is provided with an annular connector, and the leading-in body is fixedly connected with the joint through the annular connector; the outer periphery of the annular connector is fixedly connected with no less than two uniformly distributed salvage handles; the casing screw thread protector consists of a protector leading-in port and a protector body, the protector leading-in port is provided with the annular connector and the cone-shaped body with the shapes same as that of the leading-in body and forms buckling together with the leading-in body, and a notch and a T-shaped groove which are matched with the salvage handles are formed in the inner wall of the annular connector at the protector leading-in port. The oil-string casing screw thread protecting device at the casing head of the horizontal well disclosed by the utility model is extremely convenient and quick to install and take out, high in practicability and high in safety.
Description
Technical field
The utility model relates to petroleum engineering well drilling aid field, specifically a kind of horizontal well casing pipe head place production string screw thread protective device, for the protection of casing head place production string screw thread between horizontal well completion operational period.
Background technology
In horizontal well technique, completion method is generally screen casing+cased hole completion, being lowered to pipe string structure is: screen casing string+blind plate (or exempting to bore plug)+external packer of pipe+sizing collar+bunch tube+connection well joint, Hou Ning is complete in well cementation, need to proceed electrical measurement cementing quality, brill leaves sizing collar and blind plate or the salvaging of lower brill and exempts to bore plug, lower milling cone is repaired the operations such as pipe string inwall, between this operational period, if casing head place production string screw thread is not protected, drilling tool make a trip or drilling process in, drilling tool can cause damage to casing head place production string screw thread, must protect casing head place production string screw thread.
For casing head place production string screw thread is protected; on-the-spot common practices is: the wellhead assembly of dismantling; extract the pin thread part of sleeve pipe of the same type with gas welding; button on the pin thread extracting is attached on the production string at casing head place; and then load onto wellhead assembly; this kind of way operation is loaded down with trivial details, wastes a large amount of manpowers and time.
Utility model content
The purpose of this utility model is the problem existing for prior art; effectively level of protection Casing head of borehole place production string screw thread of one is provided; install and take out all easily fast, practical, safe horizontal well casing pipe head place production string screw thread protective device.
The technical solution of the utility model is
A kind of horizontal well casing pipe head place production string screw thread protective device, is made up of sleeve pipe thread protector handling instrument 9 and sleeve pipe thread protector 10 two parts; Wherein, sleeve pipe thread protector handling instrument 9 comprises joint 1 and importing body 4, and importing body 4 bottoms is bullet, and top arranges loop connecting body, and be connected by loop connecting body and joint 1, be connected and be no less than two equally distributed salvaging handles 3 at the external periphery of loop connecting; Sleeve pipe thread protector 10 is made up of protector introducing port 7 and protector body 8; protector introducing port 7 has and the loop connecting body and the bullet that import body 4 same shapes; and form and fasten with importing body 4, be provided with and notch 5 and the T connected in star 6 salvaging handle 3 and coordinate at protector introducing port 7 loop connecting body inwalls.
Such scheme also comprises:
The joint 1 of sleeve pipe thread protector handling instrument 9 and importing body 4 are connected by the derivation body 2 of taper.
The quantity of described salvaging handle 3 is 3-5, and the notch 5 coordinating with it and T connected in star 6 are similarly 3-5.
Horizontal well casing pipe head of the present utility model place sleeve pipe screw thread protective device, simple in structure, easy to use, applicability is strong, has the following advantages:
1, sleeve pipe thread protector and the production string screwed connection of casing head place, connects closely, can be good at protective sleeve tube head place production string screw thread.
2, use after the utility model; in horizontal well completion operation process; need not dismantle wellhead assembly; sleeve pipe thread protector is hung to be combined on sleeve pipe thread protector handling instrument and send into casing head place with drilling tool; by forward rotation drilling tool, complete the installation of sleeve pipe thread protector, rotate backward drilling tool; complete the dismounting of sleeve pipe thread protector, greatly reduce cost of production and labour intensity.
3, in installation and taking-up sleeve pipe thread protector process; the importing physical efficiency of sleeve pipe thread protector handling instrument help automatically to enter centering, accurately put in place fasten with sleeve pipe thread protector; derive body and can in fine protection taking-up process, not hang well head four-way or blowout preventer inner chamber, protector is installed and safety convenient to remove.
Accompanying drawing explanation:
Fig. 1 horizontal well casing pipe head place production string screw thread protective device schematic diagram
1. joint 2. is derived body 3. and is salvaged handle 4. and import body
5. notch 6. T connected in star 7. protector introducing port 8. protector bodies
9. sleeve pipe thread protector handling instrument 10. sleeve pipe thread protectors.
The specific embodiment
Be described further below in conjunction with the drawings and specific embodiments.
A kind of horizontal well casing pipe head place production string screw thread protective device, is made up of sleeve pipe thread protector handling instrument 9 and sleeve pipe thread protector 10 two parts; Wherein, sleeve pipe thread protector handling instrument 9 comprises joint 1 and importing body 4, and importing body 4 bottoms is bullet, and top arranges loop connecting body, and be connected by loop connecting body and joint 1, be connected and be no less than two equally distributed salvaging handles 3 at the external periphery of loop connecting; Sleeve pipe thread protector 10 is made up of protector introducing port 7 and protector body 8; protector introducing port 7 has and the loop connecting body and the bullet that import body 4 same shapes; and form and fasten with importing body 4, be provided with and notch 5 and the T connected in star 6 salvaging handle 3 and coordinate at protector introducing port 7 loop connecting body inwalls.
Exemplary embodiments 2
By reference to the accompanying drawings 1, this device is made up of two parts: sleeve pipe thread protector handling instrument 9, sleeve pipe thread protector 10.
Each assembly of sleeve pipe thread protector handling instrument 9 has certain thickness, and each inter-module links together by the method for welding.Joint 1 upper end is box, can directly be connected with drilling tool; Deriving body 2 is bullet, imports body 4 for the bullet with cylinder, is evenly distributed with three and salvages handle 3 on cylinder.
Each assembly of sleeve pipe thread protector 10 has certain thickness, and each inter-module links together by the method for welding.Protector body 8 is cylinder, and cylinder internal-and external diameter equals production string internal-and external diameter, and cylindrical outer has screw thread, and screw thread standard is consistent with casing head place production string box screw thread.The top of protector introducing port 7 is divided into cylinder, barrel bore is more bigger than the cylinder of the importing body 4 of sleeve pipe thread protector handling instrument 9, in cylinder, be evenly distributed with three T connected in stars 6, the lower end translot of T connected in star 6 is spaced each other, groove size is more bigger than salvaging handle, notch 5 is wider, and the salvaging handle 3 of being convenient to protector handling instrument 9 enters; The bottom of protector introducing port 7 is divided into tapered cylinder, and tapered cylinder can fasten with the importing body 4 of protector handling instrument 9.
The utility model, in application, is divided into the installation of sleeve pipe thread protector and the dismounting of sleeve pipe thread protector, now in conjunction with Fig. 1, its invention is further described.
The installation of sleeve pipe thread protector 10: the joint 1 of sleeve pipe thread protector handling instrument 9 is connected with thread of drilling tool; introducing port 7, salvaging handle 3 aligned notches 5 of body 4 alignment sleeve thread protectors 10 will be imported; transferring drilling tool makes to salvage handle 3 and enters T connected in star 6; then be rotated in the forward certain angle, sleeve pipe thread protector 10 is just hung and is combined on sleeve pipe thread protector handling instrument 9.Transferring drilling tool makes sleeve pipe thread protector 10 arrive production string box place of casing head place; slowly be rotated in the forward and transfer drilling tool; be rotated in the forward after first-class sleeve pipe thread protector 10; drilling tool reversing certain angle and slowly on carry and make it salvage handle 3 to exit T connected in star 6; on carry drilling tool and take out sleeve pipe thread protector handling instrument 9, completed the installation of sleeve pipe thread protector 10.
The dismounting of sleeve pipe thread protector 10: sleeve pipe thread protector handling instrument 9 is connected with drilling tool; calculate drilling tool and transfer the degree of depth; slowly transferring drilling tool makes the importing body 4 of sleeve pipe thread protector handling instrument 9 enter into the introducing port 7 of sleeve pipe thread protector 10; by drilling tool test; turn over test again after certain angle; enter T connected in star 6 through notch 5 smoothly until salvage handle 3, reversing drilling tool certain angle, sleeve pipe thread protector 10 is hung and is combined on sleeve pipe thread protector handling instrument 9.Slowly reversing drilling tool, lays down sleeve pipe thread protector 10, above carries drilling tool, and sleeve pipe thread protector 10 is safety taking-up under the guiding of deriving body 2 together with sleeve pipe thread protector handling instrument 9.
Claims (4)
1. a horizontal well casing pipe head place production string screw thread protective device, is characterized in that: be made up of sleeve pipe thread protector handling instrument (9) and sleeve pipe thread protector (10) two parts; Wherein, sleeve pipe thread protector handling instrument (9) comprises joint (1) and imports body (4), importing body (4) bottom is bullet, top arranges loop connecting body, and be connected by loop connecting body and joint (1), be connected and be no less than two equally distributed salvaging handles (3) at the external periphery of loop connecting; Sleeve pipe thread protector (10) is made up of protector introducing port (7) and protector body (8); protector introducing port (7) has and the loop connecting body and the bullet that import the same shape of body (4); and form and fasten with importing body (4), be provided with and notch (5) and the T connected in star (6) salvaging handle (3) and coordinate at protector introducing port (7) loop connecting body inwall.
2. according to horizontal well casing pipe head claimed in claim 1 place production string screw thread protective device; it is characterized in that: joint (1) upper end is processed with and drilling tool matching thread box; protector body (8) is cylinder, and cylindrical outer is processed with the screw thread coordinating with casing head place production string.
3. according to the horizontal well casing pipe head place production string screw thread protective device described in claim 1 or 2, it is characterized in that: the joint (1) of sleeve pipe thread protector handling instrument (9) and importing body (4) are connected by the derivation body (2) of taper.
4. according to the horizontal well casing pipe head place production string screw thread protective device described in claim 1 or 2, it is characterized in that: the quantity of described salvaging handle (3) is 3-5, the notch (5) coordinating with it and T connected in star (6) are similarly 3-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320663341.8U CN203614050U (en) | 2013-10-27 | 2013-10-27 | Oil-string casing screw thread protecting device at casing head of horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320663341.8U CN203614050U (en) | 2013-10-27 | 2013-10-27 | Oil-string casing screw thread protecting device at casing head of horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203614050U true CN203614050U (en) | 2014-05-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320663341.8U Expired - Fee Related CN203614050U (en) | 2013-10-27 | 2013-10-27 | Oil-string casing screw thread protecting device at casing head of horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203614050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389531A (en) * | 2014-11-26 | 2015-03-04 | 中国海洋石油总公司 | Screw protection cap of sleeve |
-
2013
- 2013-10-27 CN CN201320663341.8U patent/CN203614050U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104389531A (en) * | 2014-11-26 | 2015-03-04 | 中国海洋石油总公司 | Screw protection cap of sleeve |
| CN104389531B (en) * | 2014-11-26 | 2016-05-25 | 中国海洋石油总公司 | A kind of casing screw protector cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151120 Address after: 100029 Beijing Chaoyang District Hui Xin a No. twelve layer 6 Patentee after: SINOPEC OILFIELD SERVICE CORPORATION Patentee after: Drilling Well Technology Institute, Shengli Petroleum Engineering Co., Ltd., SINOPEC Address before: 100728 Beijing, Chaoyangmen, North Street, No. 22, No. Patentee before: China Petrochemical Group Corp. Patentee before: Drilling Well Technology Institute, Shengli Petroleum Engineering Co., Ltd., SINOPEC |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140528 Termination date: 20201027 |