Way OT: used oil field pipe
Way OT: used oil field pipe
I use a lot of it. I can take a look out the window and see a dozen wells in this section alone. Pipe is prolific here. I was pretty glad to get a big load here a while back for 35 cents a foot. I also got sucker rod for 33 cents a foot. If you get pipe for less than a buck a foot here you aren't getting taken too bad.
I use one inch for the bottom rail and alternate with sucker all the way up. I use two inch for the posts and sometimes for the top rail depending on what I will use the paddock for I have had cows bend it a little if they are determined but the only ones that can get through are calves under 250 pounds.
Mine is all welded. I use my tombstone Lincoln with extensions on the supply cord and lead cords. I have used my mig as well but that pipe is always rusty and nasty so the Lincoln works well with a trash rod. I slide a piece of smaller pipe in the end of the pipe and tack it in four spots. Then I slide then new one on and tack it to the other long piece. They get welded to the posts. I've also used some wood posts. I set the big corner post and drill holes to put the pipe in it. I then put in the smaller wood posts and use the two "eared" conduit holders to hold the pipe to them.
One of my jobs on these warm days it to finish a loading chute I started. I am using wood posts and then putting the pipe on the inside so even if they want out they can't get the pipe off. I like them that way since I can use the hotshot through the sides. If you use wood the have to be spaced farther to do that. I load pigs there so the pipe will be about 8 inches apart.
Are there oil wells there? If there are wells there will be pipe. Call the oil companies and inquire. I don't know that you will get the size you want - ours is one inch and two inch.
Important Facts About Your Drilling Pipe
There are a variety of types and classifications of drilling pipe that vary in their construction, properties, and applications. In order for an offshore driller to select the most appropriate type of drilling pipe for a given operation, it is important to understand the different types and classifications and their properties.
In this post, we will discuss the different types of drilling pipes and their uses. We will also highlight some of the factors that you need to consider when choosing a drilling pipe for your project.
Without drills, there cannot be petroleum; without drill pipes, there cannot be drills. Drill pipes, as you know, play a huge, perhaps underestimated role in the drilling industry. These tempered, hollow steel pipes, hardened against accidents and to withstand the pressures inherent to subterranean conditions, pump drill fluid to the drill bit.
Because of the working conditions in which they operate, drill pipes generally have to be carefully checked and rechecked for wear and tear. To that end, they are assessed with spherometers, instruments which can precisely and quickly measure the radius of a sphere.
Drilling Pipe Classification
After a spherometer check, drill pipes are classified in one of three categories:
N-class pipe, or new pipe.
The strongest, newest pipe available. Usually in pristine (or close to it) condition.
P-class pipe, or premium pipe.
A step-down from N-class pipe, premium pipe have endured some wear, but can still function very capably.
C-class pipe
C-class pipe, of which there are three classes (C-1, C-2, and C-3). Depending on their rating, C-class pipes are either well-worn pipes, or nearing the end of their useful lives.
After a pipe has reached the end of its useful service life, they will be graded for scrap, denoted with the application of red bands. Because of the high cost of drill pipes, remember that they are often reused, with many companies selling both new and used pipes (graded according to the criteria mentioned above) often until the very end.
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Types of Drilling Pipe
Now that the basics of drill pipes are covered, let’s take a look at the several types that are available.
Drill string
The drill string refers to the entire column of tools, essentially the drill pipe, shaft collar, tools, and the drill bit itself. Generally, drill pipe used for the drill string is made from tempered steel. For cost and transport reasons, sections of drill pipe rarely exceed ranges of 30 to 33 feet long.
As a result, given the extreme depths involved in drilling (particularly offshore), which can reach almost 15,000 feet, different sections are usually connected with tool joints; one section of pipe will have a male connection, which is then paired with a female connection.
Note that drill pipes will have different thicknesses, which are specified. Examples include (but are not limited to) 2 ⅜ inch thick drill pipe, 5 inch thick drill pipe, and 6 ⅝ inch drill pipe.
Drill pipes used in the upper parts of the drill string differ in both thickness and construction from heavyweight drill pipe (HWDP), used to transition between drill collars and regular, thinner drill pipe. HWDP will be discussed below
Heavyweight Drill Pipe (HWDP)
Heavyweight Drill Pipes are, as mentioned before, much stronger than regular drill pipes, because they are designed to deal with the added pressures and stresses arising from serving as transitions between drill collars and regular, thinner drill pipe.
Generally, HWDP are preferred for transitions because they are more flexible than alternative, solid connections.
Note that such piping is thicker, ranging in diameter from 3.5 inches to 6 ⅝ inches, weight almost twice as much lb/ft as regular drill pipe, and is often rated with tensile strengths ranging from 200,000 lbs to over 1,000,000 lbs.
Interestingly, drill pipes typically are equipped with a center upset, or thick wear pads that prevent the outside of the drill pipe from grinding against the rough bedrock of the hole walls. Mostly, center upsets are a desirable addition to heavyweight drill pipes, especially since by reducing wear, tear, and friction, they can prolong the lifespan of drill pipes.
With this in mind, remember that drill pipes, while they come in a variety of sizes, diameters, and materials, are divided into two broad types: regular drill pipe, and heavyweight drill pipe (HWDP), used as transitions. Generally, most pipe types can be bought new or used, and are graded according to three broad categories (New, or N; Premium, or P; and C, which has three subdivisions).
Oilfield equipment, such as drill pipes and OCTG, can be subjected to a great amount of stress while drilling. It is important that these items are inspected regularly by Field Service Supervisors to ensure their safety and performance.
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