Cementing Process Casing Running Casing comes in various sizes and grades. Surface casing typically uses 20~13 3/8 inch casing, mostly "J" grade casing which has lower strength. Intermediate casing usually employs 13 3/8~7 inch casing with higher grades. Production casing cementing typically uses 7~5 inch casing with the same grade strength as intermediate casing. The
I. Concept of Cementing Engineering The operation of filling the annular space between the casing and the wellbore with cement. II. Purpose of Cementing Reinforce the wellbore to ensure safe drilling continues. Isolate oil, gas, and water layers to ensure stratified testing during exploration and reasonable oil and gas production throughout the exploitation process.
Crude Oil Pump Production Process Flow 1. Mechanical Processing The main mechanical processing equipment includes lathes, drilling machines, boring mills, grinders, gear hobbing machines, etc. Reducer Box Manufacturing Process Flow: Based on the company's production plan, procure raw materials and externally purchased/co-manufactured components. After quality inspection, store the components. Raw materials are inspected and stored,
Oil Casing Processing Technology and Manufacturing Process 1.1 Oil Casing Manufacturing Process Refer to Figure 1 for the flowchart of the oil casing manufacturing process. Exterior Inspection of Tube Billets There are two sources for the raw materials of casing tube billets: seamless tube billets and ERW (Electric Resistance Welded) tube billets. Both types should
Introduction to Domestic Oil Casing Production Lines In recent years, China's oil casing processing technology has continuously improved. The export volume of oil casings has also increased significantly, with many domestic manufacturers enhancing their production capabilities for oil casings. Through investigations and research on China's oil casing processing enterprises, it has been found that the
Common Drill Collar Data and Drill Pressure Calculation Drill collar data are critical parameters in drilling operations that help engineers conduct safe and efficient drilling. Common drill collar data include drill collar diameter, bit speed, drill pressure, rotational speed, etc. Drill Collar Diameter: The drill collar diameter refers to the outer dimension of the drill
How to Use Double Stabilizers The primary effect of double stabilizers lies in stabilizing the azimuth. In practice, we have found that in most cases, double stabilizers serve to stabilize or slightly increase the azimuth. Some drill string configurations can even result in significant increases in azimuth if used appropriately, without leading to a decrease
Conventional Drilling Straight Well Drill String Combinations: BIT: Drill Bit DC: Drill Collar SDC: Helical Drill Collar LZ: Motor Drill String SJ: Bi-directional Shock Absorber DP: Drill Pipe HWOP: Heavyweight Drill Pipe STB or LF: Stabilizer (Drill String) LB: Fishing Basket While Drilling DJ: Jar Tower-type Drill String Combinations: Φ444.5mm BIT × 0.50m + Φ229mm
1. Well: A cylindrical hole drilled into the formation to a certain depth for the purpose of exploring and developing oil and natural gas. 2. Wellhead: The opening end of the well. 3. Well bottom: The lowermost end of the well. 4. Open hole: The section of the well that has not been cased. 5.
Common Drill Collar and Tubular Displacement Volumes Displacement volumes per joint of commonly used drill collars and tubulars: 9" drill collar volume per joint = 0.98 m³ 8" drill collar volume per joint = 0.77 m³ 7" drill collar volume per joint = 0.56 m³ 6-1/4" drill collar volume per joint = 0.43 m³ 6-3/4"