Hydraulic high-pressure particle jet drilling plug test device
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A test device and particle technology, applied in the field of petroleum drilling, can solve problems such as drill sticking accidents, drill bit milling casing, casing damage, etc., and achieve the effects of reliable dynamic sealing, adjustable drilling pressure, and optimized construction parameters
Active Publication Date: 2021-11-16
CHINA UNIV OF PETROLEUM (EAST CHINA)
View PDF0 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
The other is to drill through the downhole screw rod and drill bit. In this method, the pressurization of the drill bit is difficult, and the effect of the drill plug is not ideal.
For wells with casing damage and severe casing deformation, conventional screw drilling tools and drill bits are difficult to pass through smoothly, and pipe sticking accidents are prone to occur. For small-sized wells, drill plug tools cannot be lowered, and pipe stuck accidents are prone to occur
At the same time, during the mechanical rotation of the drill bit, it is easy to cause the drill bit to grind and mill the casing, which may easily lead to damage to the casing
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0015] The present invention will be further described below in conjunction with accompanying drawing:
[0016] Such as Figure 1~3As shown, the hydraulic high-pressure particle jet drilling plug test device of the present invention includes a storage tank 1, a sand mixing cylinder 2, a conveyor 3, a material receiving cylinder 4, a cement truck 5, a high-pressure pipe 6, a high-pressure elbow 7, and a pulley 8. Skid mounting frame 9, sliding sleeve 10, moving beam 11, vertical rail 12, steel wire rope 13, sliding seal assembly 14, centralizing rod 15, return pipeline 16, return liquid port 17, counterweight 18, glass Upper cylinder 19, oil pipe 20, middle beam 21, nozzle 22, nozzle 23, flange plate 24, glass lower cylinder 25, cement plug 26, bottom beam 27, hinge 28, base 29, recovery tank 30. The storage tank 1 is arranged on the ground for storing circulating fluid and supplying liquid for the cement truck 5. The sand mixing tank 2 is arranged at the front of the cement t...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Login to view more
Abstract
The invention belongs to the field of petroleum drilling and production, and in particular relates to a hydraulic high-pressure particle jet drilling plug test device, which includes a conveyor, a cement truck, a high-pressure pipe, a skid-mounted frame, a sliding sleeve, a moving beam, a vertical track, a sliding sealing assembly, The return pipeline, counterweight, glass upper cylinder, oil pipe, nozzle, nozzle, glass lower cylinder, hinge, recovery tank, etc., through the special particle jet drilling test device, realize the full-scale simulation of the downhole particle jet drilling process on the ground. Visualization of jet drilling and annulus upward return, effective control of the lowering and lifting of the nozzle, adjustable drilling pressure during drilling, reliable dynamic sealing of the moving tubing and annular return fluid, thereby verifying the effect of hydraulic high-pressure particle jet drilling , to obtain the optimized construction parameters of the hydraulic high-pressure particle jet drilling plug.
Description
technical field [0001] The invention relates to a hydraulic high-pressure particle jet drilling plug test device, which belongs to the field of petroleum drilling. Background technique [0002] With the continuous deepening of oilfield development, in order to meet the production needs, technological constructions such as plugging and sealing layers, cement plugging blastholes, oil and water well inspection and plugging, and long-term shutdown wells to resume production are gradually increasing. During the construction of these technologies, cement will be produced. The plug surface needs to be drilled out through plug drilling operations. There are two commonly used plug drilling methods at present. One is to drive the downhole drill bit to rotate through the wellhead rotary table. This method requires major overhaul of operating equipment and high investment costs. Another kind is to add drill bit drilling mode by downhole screw rod, the pressurization of this method drill...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more