Question: Compute the equivalent density below the casing seat at 4,000 ft when a mud having a density of 10 Ibm/gal and a gel strength

Compute the equivalent density below the casing seat at 4,000 ft when

Compute the equivalent density below the casing seat at 4,000 ft when a mud having a density of 10 Ibm/gal and a gel strength of 70 lbm/100 sq ft just begins to flow. The casing has an internal diameter of 7.825 in., and the drillpipe has an external diameter of 5 in. Discuss how the pressure required to start circulation can be reduced. Answer: 11.6 Ibm/gal.

Step by Step Solution

★★★★★

3.42 Rating (146 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Physics Questions!

A hydraulic hoist raises a 3650 lbm car 6 ft in an auto repair shop. The hydraulic pump has a constant pressure of 100 lbf/in.2 on its piston. What is the increase in potential energy of the car and...

A hydraulic hoist raises a 3650 lbm car 6 ft in an auto repair shop. The hydraulic pump has a constant pressure of 100 lbf/in 2 on its piston. What is the increase in potential energy of the car and...

A constant pressure piston/cylinder has 2 lbm water at 1100 F and 2.26 ft3. It is now cooled to occupy 1/10 of the original volume. Find the heat transfer in the process.

Based on the problem statement of Example 14.20, calculate for just Section 1 the component material balance in pounds per day of operation, the percent recovery (yield) from the whey of the TP and...

Old Country Links, Inc., produces sausages in three production departments-Mixing, Casing and Curing, and Packaging. In the Mixing Department, meats are prepared and ground and then mixed with...

Petah, Ltd., of Tel Aviv, Israel, has budgeted costs in its various departments as follows for the coming year: Factory Administration . . . . . . . . . . . . . . . 540,000 Custodial Services . . . ....

Rocky owns and operates Balboas Gym located in Philadelphia. The following transactions occur for the month of October: October 2 Receive membership dues for the month of October totaling $8,500....

Refer to Exercise 18.4. In Exercise 18.4 A meat science researcher designed a study to investigate the impact of increasing the portion of grain (and hence decreasing the portion of hay) in the daily...

The following information has been gathered for Malette Manufacturing: Assume that the firm has no common stock equivalents. The tax rate is 34%. Required: 1. Compute the return on assets. 2. Compute...

Let X denote the amount of time a book on two-hour reserve is actually checked out, and suppose the cdf is a. Calculate P(X 1). b. Calculate P(.5 X 1). c. Calculate P(X > 1.5). e. Obtain the...

Write a brief essay on Deafness in America

In order to compare the means of two populations, independent random samples of 400 observations are selected from each population, with the following results: Sample 1 Sample 2 x1 = 5,275 .... x2 =...

Salary positions according to the 1 9 3 8 FLSA are; Only managerial positions. exempt from receiving overtime pay. Paid 1 1 / 2 time their normal hpourly rate for hours worked over 4 0 per week....

The Constitutional Convention of 1787 was meant to make changes in the Articles of Confederation instead of create a new document. Why do you think the Articles were discarded?

Go to a site that provides price-to-earnings, price-to-sales, and priceto-book ratios and compare four firms in the same industry, such as telecommunications, retailing, or pharmaceuticals. Compare...

The following purchase transactions occurred during March for Celebration Catering Service: Mar. 11. Purchased party supplies for $820, on account from Party Hearty Supplies Inc. 14. Purchased party...

The following purchase transactions occurred during October for Non-Stop Inc.: Oct. 6. Purchased office supplies for $1310, on account from U-Save Supply Inc. 14. Purchased office equipment for...

Elite Realty acts as an agent in buying, selling, renting, and managing real estate. The unadjusted trial balance on March 31, 20Y7, follows: The following business transactions were completed by...

All of the following are functions of acid in the stomach except: Group of answer choices provides vitamin B12 absorption activates pepsin kills microorganisms dissolves food fibers

a. Solve example 4.7 b. C. Figures 4.7 and 4.8 only reflect initial conditions. Demonstrate (with calculations) that for formation pressure is the same when it is computed in both sides of the "U"...

4.51 A 50-bbl kick is taken at a depth of 14,000 ft while drilling with a 15-lbm/gal mud. After the pressures stabilized, an initial drillpipe pressure of 1,200 psig and an initial casing pressure of...

2. A 50-bbl kick is taken at depth of 14000 ft while drilling with 15-lbm/gal mud. After the pressures stabilized an initial drilipipe pressure of 1200 psig and an initial casing pressure of 2600...

The following well conditions are given. Well depth, ft Drillpipe OD, in. 15,000 5 Ibm/ft in. effective ID 19.5 4.33 Drill collars (8-in.-ODX3-in.-ID), ft Casing (J-55) set at 4,500 ft, in. 600 10.75...

The following well conditions are given. Parameter Well depth, ft DP OD, in DP ID, in DP weight, lbm/ft DC (ODxID), in DC length, ft Casing (J-55) depth, ft Casing weight, lbm/ft Bit diameter, in...

For a regular cylindrical shaped particle having a diameter of 0.1 cm and length of 1.2 cm, compute the following: Density equation (kg/m): p = 02 0.75 where: a = 4582 and b= 3695 DHL + th 2.1....